Whether or not to enable auto search: if enabled, search request will be fired automatically
once object is detected and confirmed, otherwise a search button will appear to trigger search manually

Required time that the auto-detected object needs to be focused for being regarded as user-confirmed

Barcode detection

Barcode aiming frame size

Barcode size check: will prompt "Move closer" if the current detected barcode size is not big enough

Delay loading result: to simulate the case where the detected barcode requires further
processing before displaying result.

Static Image scenario

It'll prompt to select an image from the Image Picker, detect objects in the picked image,
and then perform visual search on them. There're well designed UI components (overlay dots,
card carousel etc.) to indicate the detected objects and search results.

Note that the visual search functionality here is mock since no real search backend has set up
for this repository, but it should be easy to hook up with your own search service
(e.g. Product Search) by only replacing the
SearchEngine class implementation.